Well it isn't a guarantee that they will delete the data, just a notice that they won't be liable legally if they do decide to do so. Probably just a legalistic CYA, but if so they should probably word it better.
"Well it isn't a guarantee that they will delete the data, just a notice that they won't be liable legally if they do decide to do so."
That's even worse. If I know my data will be deleted, and under what circumstances, I can take steps to address the issue. "We might, potentially delete data, probably not, but who knows?" is kind of hard to plan against.
I agree it's probably just boilerplate that they're unlike to exercise, but I do think it's part of the SLA and so it's entirely appropriate to single it out and ask for clarification or change.